Lamp



LAMP.

APPLICATION FILED MAR. 16, 1921..

I Patented Nov. 14 192a 3 SHEETS-SHEE1 1:.

, F: e. a

\Nllh'mm i. 5Te wart MENTOR ATTORNEY vi/yank 5.5% I

W.L.STEWARR LAMP. APPUCATION HLED MAR-l6,192h

1,435,427. Patented Nov. 14,1922

3 SHEETS-SHEET 2.

WLkLLI RMX. STEWHRT \NVF toR by I 11/4225 6.667 7 AwTeRNEx W. L.STEWART.

LAMP.

APPLICATION FILED MAR. 16, 1921.

1,435,427, Patented Nov. 14, 19232.

8 SHEETSSH'EET 3.

ATTbRNEY Fatented Nov. l i, 1922.

WILLIAM L. STEWART, orwoecnsriia, ivmssncnosnrrs Applicationfi'Ied'Mar'ch' 16, 1921. Serial in. 452,716.

To all whomit may concern Be 1t known that 1, WILLIAM L. STEWART,

' a citizen of the United States, residing at Worcester, in the countyof \Vorcester and State of Massachusetts, have invented new and usefulImprovements in Lamps, or.

lamp fixture connected theretoso as to adapt the lamp interchangeably togive out illumination employing either gas or electricity, at any onetime' V A still further object of my invention is to provide novelimprovements in lamp shade designs, to enhance the appearance andutility o'fthe aforementioned lamp and to assist in a betterdistribution of the light rays particularly upon a 'table thereby re'--sulting in a better focus of light than isob tained from most lamps;

And-itis another-object of my invention to provide novel means ofsecuring a lamp? the' pedestal of a,

shade in; position upon lamp which is characterized by the fact that notools are necessary to secure the'xsh'ade.

With the above and other objects in View my invention consists in thecombination, arrangement and details of construction disclosed in thedrawings and specification and then more particularly pointedout in theappended claims.

' In the drawings wherein similarreference' milar parts"throughcharacters designate s1 out-the respective vlews, I Y Y Flg'ure 11sa side elevation of my inveng tion including the gzjlass sh'ade,v

Figure 2 1s a side elevat on without the ounted thereon,

glass shade being bottom plan view' of the Figure 3' is a lamp,

arrange the lamp;

] with divergent branches Figure A: is a vertical, sectional view Figure5 is a fragmental, sectionalview through a-modification of myinvention,-

Flgure 6 is a top plan view of Figure ,5, Figure 7 is a cross sectionthrough the pedestal shown in Figure 5, I

Figure -8 is a fragmental, sectional, detailed view of a lamp shade,Figure 9 is a vertical, sectional view through the lamp taken at rightangles to Figure 4,

Figure 10 is a top plan'view of Figure 2, Figure 11 is a bottom planview of the lamp shade, l I 1 Figure 12 is asectional, detailed view ofthe lower edge of the lamp shade,

Figure 13-is a detailed view of a corner of'the lamp shade, Figure 14 isa detailed, sectional, nag mental view of another corner "of the lampshade, l Figure 15 is a fragmentahdetailed view of a shade-supportingarm, and,

Figure 16 is a plan view of apart to be described.

In the drawings which are merely illus trative of my invention,ldesi'gnates the base portion of the lamp which is also formed with aplurality of props 2 located at the corneroi the base portion 1. lhebase portion is formed centrally with a throughchannel orpassage. 3 atone end of which fits a connector element 4," and this passagecommunicates with a vertical channel or passage formed longitudinallythrough a support or pedestal 6. The upper end ofthe pedestal isenlarged as'at 7 and this end of the pedestal is adapted to carry, acollar or headed portion, whichmay be in the form of a separate block 8resting upon the fiattop surface of the support or pedestal 6. The upperend of the passage 5 is provided M and N: which communicate withoontiinuations of these branches 0 and P formed through block 8- asclearly shown in Figure 4. and .in the branches O and project thetubular terminals 9' and 10 of the electric bulbs 11 and 12, whichelectric bulbs are thus oppositely inclined so as to converge towardsthe pedestal There is a gaspipe 28 extending vthrough the upper end'ofthe passage 5 and running lengthwise of this passagebeing bent around at28 so as" to project laterally in the" base assage 3- arena;- cenraeutnerew sni ers 7 to which is secured a flexible gas pipe X. The upperend of the gas pipe is threaded for the reception of a nut 13 whichforms part of the stem 14 of the gas mantle fixture and it will also benoted that the nut 13 clamps down tight upon the block 12" which issecured upon the top of the block 8. This nut or clamping coupling 13may be screwed upon either pipe 28 or pipe section 18. Electric wires Yconnected together carrying a plug 48 adapted to have an electricalinterfit with the connector element 4 and the wires run through the basepassage 3 upwardly through the pedestal passage 5 and are connected tothe electrical bulbs 11 and 12. .lt will be understood that the electricbulbs carry the usual. switch chains (not shown.)

In order to simplify the arrangement and construction of all the partsthere is shown in Figure 5 a fixture in the nature of aniain pipe, theupper portion of which is desig nated 18 and the lower portion 15 therebeing formed at diametrically opposite points of this pipe the divergentThe upper portion of the pedestal or support 6 as shown in Figure 5 isheaded as at 21 to provide an integral collar disposed to take the placeof the separate collar 8, and this headed portion is formed with asocket 23 which flares outwardly of the head and the oppositely inclinedpipe branches or arms 16 and 17 fit snugly in this socket while thelower end of the pipe 16 fits snugly in the passage 5 while the upperportion 18 of the pipe projects above the head 21. The arms 16 and 17serve to provide integral means on the upper portion 18 of the gasfixture to limit the downward movement of this gas pipe in saidpedestal. A plug 19 fits around the portion of the pipe 18 and contactsthe head 21 and is secured in position by the fasteners 20 entering theholes 24 formed in the head 21. The mantle 14 is then operativclyconnected to the projecting terminal of the pipe portion 18.

It will thus be seen that by connecting the plug 48 to the switchelement 4 an electrical circuit is closed to the lamp bulbs 11 and 12causing the bulbs to flash and glow and if the flexible gas pipe X isconnected up to the proper gas fixture and gas introduced in the pipethe gas will find its way up the pipe 28 or through pipe section 18 ofthe three-way gas fixture as shown in Figure 5, to the mantle and thusgas may be used for illumination purposes as well as electricity.

In order to obtain a better dissemination of the light rays it isnecessary to employ my lamp shade which will now be described. In orderto support the lamp shade removably on the pedestal, I provide aplurality of shade supporting arms 26, four of which are disclosed. Eachof these arms consists D of a lug 29 formed at its inner end and a arms16 and 17.

substantially ri ht angular lug formed at its outer end, as shown inFigure 15, each of the lugs 29 are provided with a headed pin 30 adaptedto engage a key hole slot 33 formed in a plate 32 so that the head ofthis pin will be accommodated in a socket 31 formed into the pedestal.The idea is to insert the head of the headed pins 30 into the wide endof the key hole slot 33 and then by pressing the lug inwardly the headwill be locked in the narrow portion of this key hole slot. 7 The lugs27 formed upon arms 26 are also formed with key hole slots similar tothe slots 33 adapted to be pre sented against pins 49 secured upon fourdiagonal straps 30 forming part of the lamp shade.

The lamp shade consists of an upper rectangular strip 40 and a lower,larger rectangular strip 25, the last named strip being wider than thestrip 40. A series of diagonal strips 34 extend between the rectangularstrips 40 and 25 and have beveled abutting edges engaging the sides ofthe strip 25 as shown in Figure 14. I provide four trapezoidal shapedglass panels 37 substantially of similar shape extending upwardly fromthe edges of the strip 25 and the lateral edges engaging under thestrips 34 which may be grooved out asshown in Figure 8 to snugly receivethese edges of the glass panels 37, the strips 39 extend parallel to thestrips 34 on the inner side of the shade and are positioned as shown inFigure 8 so as to engage the glass panels 37 at the same time these twostrips being secured together by the fasteners 30 shown in Figure 8.Angle irons 41 are secured to the corners of both of strips 25 and 40and have angularly inclined arms arranged in alinement and secured tothe respectively upper and lower ends of the strips 38 (see Figure 14.)In this manner the glass panels 37 are secured in proper position allaround the shade. I also mount four glass strips arranged in two sets,the first set being designated 37 andthe other set at right angles tothe first set being designated 46. These glassstrips are intended tooverlie the inner sides of the strip 25 and are held against downwarddisplacement by the fasteners or clips 45, (see Figure 12) secured tothe sides of the strips 25. The corners of the sides of the strip 25having a beveled edge fit and their inner intersecting portions areconnected to angle irons 43 which thus stiffen these parts and bridgingthe opposing edges of the side of the angle irons 43 are gussets 44which also form abutments for the right angular disposed glass strip 37and 46. The sides of the strip 25 will preferably be cut away to providedesirable filigrees so as to enable the light to show through the glassstrips 37 and 46' which overlie their inner sides. When the light isshining from the mantle 14 or the electric bulbs 11 and 12 the incliningglass pc nels 37 will be found to scatter and dilluse the light.

. ment 4 the electric light circuit may be interrupted.

What I desire to claimfand secure by Letters Patent is: I

1. A lamp consisting of a base having a horizontal passage therein, awooden pedestal secured down upon said base and having a verticalpassage communicating with the horizontal passage, a pipe passingupwardly through the pedestal passage and-projecting thereabove andhaving a lower curved portion projecting through the horizontal passageof said base at one side of the pedestal, electric lamp sockets in theupper end of said pedestal diverging with respect to. said pipe upwardlyoutside said pedestal, a gas mantle secured to the upper end of saidpipe, a block surrounding the upper projecting end of said pipe andlaying on top of said pedestal, a nut carried by said pipe adapted toclamp down said block, and electrically fed lamps connected to saiddivergent lamp sockets.

2. A gas lamp consisting of a wooden pedestal having a flat baseportion, said pedestal having a vertical and horizontal passage, a pipehavmg ts main length recelved 1n the vertical passage of the pedestaland having a lower angular portion projecting out through the horizontalpassage of the pedestal, a nipple connected to the lowerend of said pipeand havingan enlargement of the base portion, a connector elementsecured in the base channel at a point opposite to said mentionednipple, a flexible gas pipe connected to said nipple, an electricplugconnected removably to said connector element, an electric lampdevice connected to the upper end of said pedestal andelectricalconnections leading from said connector element to saidelectric lampdevice. p

3. In a device flSdQSCIlbBd, in combination, apedestal, a gas pipeextending thru' said pedestal so as to project above its'litop portion,integral means on said pipe imbedded' in said: pedestal and, limitingthe downward movement of saidpipe in said. 5

pedestal, a block: around said pipeengaging the top of said pedestal, acoupling engaging the outer end of said pipe and clamping said blockdown onfsaid pedestal, a burner connected at its lower end to saidcoupling, and a mantle carried by said burner.

4'. In a device as described, in combination, a base portion, a woodenpedestal having alower part secured centrally to said base portion, saidpedestal being formed with a central vertical bore. and said pedestalhaving its upper portion cut away so asto communi cate with said centralbore adapted to provide oppositely inclined walls, lamp sockets jprojecting into said cut-away portion and engagingthe inclined wallsthereof, and a gas burner pipe projecting into the uppermost end ofsaidcentral bore.

5. v In combination, a fiat support,-said' fiat support being cut awayatvarious points to produce depressions, said depressions having rabbets,plates countersunk in said rabbets having key-hole slots, and a seriesof lamp carrying pins projecting into said key-hole t In witnesswhereof. he has hereunto set his shade supporting arms having angularlugs hand and afiixed his seal this 5th day of February, 11 921.

Attested: WILLIAM'E. Barn,

JAMES STEWART.

WILLIAM L. STEW -l

